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Finding the Fourth Proportional to 339,617.60, 468,526.92 and 212,071.76

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Solution

The fourth proportional to 339,617.60, 468,526.92 and 212,071.76 is: 292,568.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,617.60 : 468,526.92 = 212,071.76 : x
  2. Step 2: Convert to fraction form
    339,617.60/468,526.92 = 212,071.76/x
  3. Step 3: Cross multiply
    339,617.60x = 468,526.92 × 212,071.76
  4. Step 4: Simplify right side
    339,617.60x = 99,361,328,531.78
  5. Step 5: Solve for x
    x = 99,361,328,531.78/339,617.60
  6. Step 6: Final answer
    x = 292,568.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.